EP 0820505 B1 20010221 - FILTER AID FOR USE IN ALLUVIATION
Title (en)
FILTER AID FOR USE IN ALLUVIATION
Title (de)
FILTERHILFSMITTEL FÜR ANSCHWEMM-FILTRATION
Title (fr)
ADJUVANT DE FILTRATION AMELIORE UTILISE EN ALLUVIONNAGE
Publication
Application
Priority
- EP 95941042 A 19951123
- EP 9504690 W 19951123
- EP 94870190 A 19941206
Abstract (en)
[origin: WO9617923A1] A filter aid for use in alluviation, consisting of angular particles which do not deform under pressure and have an average aspect ratio (measured using an image analyser), as defined by the ratio between the smallest and largest particles, of 0.60-0.85, preferably around 0.7, the shape of the particles being uniform and isotropic.
IPC 1-7
IPC 8 full level
B01D 37/02 (2006.01); B01D 39/02 (2006.01); B01D 39/04 (2006.01); B01D 39/06 (2006.01); C12H 1/04 (2006.01); C12H 1/044 (2006.01); C12H 1/056 (2006.01)
CPC (source: EP)
B01D 37/025 (2013.01); B01D 39/04 (2013.01); B01D 39/06 (2013.01); C12H 1/0408 (2013.01); C12H 1/0424 (2013.01)
Citation (examination)
- Catalogue par Malvern Intruments , Orsay, France, "Ultrasizer- granulométre par ultrasons" pages 3-11
- T. Allen: "Particle Size Measurement", 1975, CHAPMAN AND HALL, LONDON, 2e édition, pages 74-85
- Groupe Français de Génie des procédés: "Procédé de broyage", 1996-45, LAVOISIER TECHNIQUE ET DOCUMENTATION, PARIS, Vol.10, pages 111-116
- L.S. Varosky: "Solid liquid separation", 1981, BUTTERWORTH, LONDON, 2e édition, pages 265-293
- Lowell and Shields: "Powder Surface Area and Porosity", 1991, CHAPMAN AND HALL, LONDON, 3e édition, pages 14-39
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9617923 A1 19960613; AT E199258 T1 20010315; AU 4257796 A 19960626; AU 705612 B2 19990527; BR 9509862 A 19970930; CA 2207394 A1 19960613; CA 2207394 C 20060328; CN 1079829 C 20020227; CN 1168692 A 19971224; CZ 173697 A3 19980114; CZ 292502 B6 20031015; DE 69520158 D1 20010329; DE 69520158 T2 20010906; DK 0820505 T3 20010618; EP 0820505 A1 19980128; EP 0820505 B1 20010221; ES 2155901 T3 20010601; GR 3035893 T3 20010831; HU 218877 B 20001228; HU T77032 A 19980302; KR 100394183 B1 20031022; KR 987000406 A 19980330; MX 212664 B 20030127; MX 9704180 A 19980630; PT 820505 E 20010830
DOCDB simple family (application)
EP 9504690 W 19951123; AT 95941042 T 19951123; AU 4257796 A 19951123; BR 9509862 A 19951123; CA 2207394 A 19951123; CN 95196663 A 19951123; CZ 173697 A 19951123; DE 69520158 T 19951123; DK 95941042 T 19951123; EP 95941042 A 19951123; ES 95941042 T 19951123; GR 20010400746 T 20010518; HU 9701991 A 19951123; KR 19977003716 A 19970603; MX 9704180 A 19970605; PT 95941042 T 19951123